Sonja Corporation uses a process costing system to manufacture laptop PCs. The following information summarizes operations for its VeryLite model during the quarter ending March 31 , Year 1 : (Click the icon to view the information.) Beginning work-in-process inventory was 50% complete for direct materials. Ending work-in-process inventory was 70% complete for direct materials. What were the equivalent units for direct materials for the quarter using the FIFO method? 1. 436 2. 620 Data table 3. 720 4. 536